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BRIAN O'BRIEN

Overview
  • Total Patents
    11
About

BRIAN O'BRIEN has a total of 11 patent applications. Its first patent ever was published in 1930. It filed its patents most often in United States. Its main competitors in its focus markets electrical machinery and energy, optics and foods and drinks are UNITED WIN CHINA TECHNOLOGY LTD, ENSIGN BICKFORD OPTICS and HERMAN NEUWIRTH.

Patent filings in countries

World map showing BRIAN O'BRIENs patent filings in countries
# Country Total Patents
#1 United States 11

Patent filings per year

Chart showing BRIAN O'BRIENs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Brian O'Brien 11
#2 French Jr Hobert W 1

Latest patents

Publication Filing date Title
US2825260A Optical image forming devices
US2627199A Optical image dissecting apparatus
US2518632A Antioscillation mounting for optical instruments such as telescopes, cameras, and the like
US2506734A Aspheric contouring machine
US2160981A Method and apparatus for producing thin wedges
US2168681A Method and apparatus for separating materials
US2132431A Irradiating method and apparatus
US2121882A Electrode
US2133562A Method and means for determining optical characteristics of substances
US2147857A Method of irradiating liquids
US1955143A Electric arc lamp